GLOBAL - Energy company Centrica, offshore drilling contractor Noble Corporation and electronics manufacturer Rohm have been removed from the 2010 Dow Jones Sustainability World (DJSI World) index following the review of the corporate sustainability assessment by asset manager SAM, which publishes and licenses the indices.

The companies that will no longer be included in the index were very close to achieving best-in-class results with regard to sustainability in their respective sectors, SAM said.

However, according to index construction rules, only the highest-ranking companies can be included in the index.

Eight companies - Gamesa Corporacion Tecnologica, Embraer-Empresa Brasileira de Aeronautica, Terna, Red Electrica, Aegon, Seiko Epson, KT&G and Nippon Yusen - have been added to the DJSI World's initial 318 components.

Two companies, Fortum Oyj and UPN-Kymmene Oyj, were deleted from the DJSI Europe, while eight companies - Bayer, Portugal Telecom, Terna, Royal KPN, Aegon, Klepierre, Legal & General and Standard Life - were added.

The review also led to two additions and one removal from the DJSI North America, as well as two additions to the DJSI Asia Pacific.

The DJSI Korea was left unchanged.

The reviews followed SAM's identification of an issue in the software used to evaluate the results of the corporate sustainability assessments in early October.

All changes will take effect at the close of trading on 17 December. The changes resulting from the review can be found on